<div id="cascade-selector" :style="cascadeSelectorStyle">
    	<el-col v-for="(param, i) in params" :key="i" :span="Math.ceil(24 / colCountOfRow)">
    		<el-form-item :label="param.label" :label-width="labelWidth" style="width: 100%">
    			<el-select v-model="currentValue[i]" :placeholder="'请选择' + param.label" style="width: 100%" clearable
    				@change="changeSelected($event, i)">
    				<el-option v-for="option in param.options" :key="option[param.optionValueKey]" style="width: 100%"
    					:label="option[param.optionLabelKey]" :value="option[param.optionValueKey]" />
    			</el-select>
    		</el-form-item>
    	</el-col>
    </div>
